Improvement in printing-presses



PATENT OEEIGE.

ANDREW 1"DOUGHERTY, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN 'PRINTING-PRESSES.

Specification forming part of Letters Patent No. 57,486, dated August 28, 1866.

Athe same; and Fig. 3 represents a plan ot' the same.

Upon the 9th day of August, A. D. 1859, Letters Patent of the United States were granted to me for an improvement in printingpresses. rlhe object of my present invention is to extend the utility of the said improve ment; and it consists of the combination, in a printing-press, of the following instrumentalities, viz: rst, a printing or main cylinder for 'carrying a sheet of paper and presenting it to printing-surfaces; second, a reciprocating carriage for holding a form of type or other fiat printing-surfaces, and applying them to the paper carried by the main cylinder; third, inking apparatus for such iiat printing-surfaces 5 fourth, one or more iinpression-cylinders for carrying curved prin ting-surfaces and applying them to the paper carried by the main cylinder, iift-l1,inkiiig apparatus for such curved printing-surfaces, and, sixth, a carriage holding the inking apparatus for such curved printing-surfaces, and arranged so that it may be moved to and fro, whereby access is readily.

obtained to the printing-surfaces.

My invention consists, further, of the combination of the aforesaid instrumentalities with.` ljrst, one or more impression-cylinders for curved printing-surfaces arranged at the side of the main or printing cylinder opposite that at which the first impression cylinder or or vcylinders are situated; second, an inking apparatust'or such second impression-cylinder; and, third, a carriage therefor; so that the same press contains a reciprocating carriage for flat printing-surfaces, the inking apparatus therefor, at least two impression-cylinders and inking apparatus arranged at opposite sides of the printing-cylinder, and two carriages for said inking apparatus.

My improvements are embodied in the printing-press the principal parts of which are represented in the annexed drawings, the remainder being omitted in order to render the drawings more simple, `and because the parts omitted do not differ materially from the corresponding parts of other presses.

The main cylinder A of this press is constructed in the manner customary in cylinder printing-presses, and is fitted with gripers and such other appliances as are necessary to enable it to seize, carry, hold, and deliver the sheet of paper to be printed. This cylinder is mounted upon a shaft, b, which is supported by the sides of the frame C of the press.

The reciprocating type-carriage B is arranged to move to and fro horizontally beneath the main cylinder A, being supported on suitable ways which are secured to the frame O ot' the press. 1t is constructed and driven as is customary in roller printing-presses, a convenient mode of driving it being by means of a rising-and-falling pinion, D, operating in connection with a rack secured to the carriage.

rlhe carriage is provided with an inliingtable, d, which by the motion of the carriage is moved to and fro beneath two sets ot' distributing-rollers, a a a a, a a a. a', and a vibrating hiking-roller, c, which supplies ink to one of the sets, c a, a a, of distributing-rollers from the ductor fof the font E beneath the level of the carriage. The vibrating roller c is alternately raised and lowered by two inclined planes, g g, secured to the carriage B.

The ruiming-press represented in the drawingsis provided with three impression-cylinders, F F F, arranged at one side of its main cylinder A, andV adapted to hold curved printing-surfaces and to apply them to the sheet of paper carried by the main cylinder. Ilhe shaft of each of these impression-cylinders is supported in puppet-heads L h, secured to the frame() of the press. An inking apparatus is provided for each of these impression-cylinders, and these several inking apparatus are connected with a carriage, G, which is arranged to slide toward and from the main cylinder A upon ways formed upon the sides of the frame C of the press. Each inking apparatus consists, in this example, of an ink-font, E', with its ductor-roller f' and stripper i', a vibrating roller, c', and distributing-rollers a2 r2-a3 a' a4,- but one complete set of these is shown in the drawings, in order to render them less complicated.

rlhe vibrating roller c' is conveniently operated by cams e e, secured to the journals of one of the distributing-rollers, a3.

The main distributinggf-cylindersn3 a3 a3 have cog-wheels 7c 7c lc' iitted to -their shafts, which are connected, by intermediate cog-wheels, k' lc', with each other, so that when one set of inkingcylinders are turned the others are turned likewise.

The cog-wheel 7c of the lowest inking apparatus upon the carriage gears into a cog-wheel, k2, which is in the proper position, when the carriage is in place for printing, to gear into one, k3, of a train of wheels which are supported by the frame C of the press, and which then impart motion from the main cylinder A to the inking-rollers of the carriage G. The carriage is provided with stops m m', (two at each side,) by which it is held in its place, when the press is at work, with the last ink. ing-rollers a4 a4 of eachfset kin position to apply ink to the type or other curved printingsurfaces carried by the impression-cylinder F.

As the inking` apparatus of the impressioncylinders F F F at the side ofthe main cylinder are combined with thecarriage G, the first may be readily removed from the impressioncylinders by moving the stops m m' and sliding back the carriage, thereby permitting free access to the impression-cylinders for the purpose of ad j ustin g the printing-surfaces thereto, or for other-purposes. Moreover, when such purposes have been accomplished, the inking apparatus are readily restored to their preoise positions by moving' the carriage G back to its place, and then the whole are secured by replacing the stops m m'.

An additional impression-cylinder, F', is arranged at the side of the main cylinder A opposite that at which those F F F, above described, are situated. An inking apparatus composed, of a font, ductor-roller, vibrating` roller, and distributing-rollers a5 als a (the last only of which are represented in the drawings) is provided for this impression-cylinder F', and is secured to a carriage, G', which is arranged to slide to and from the main cylin der A upon the frame of the machine in manner similar to the carriage G, first described. This carriage is held in place with the last two distributing-rollers, a6 a6, of its inking apparatus in proper positions to apply ink to the curved printing-surfaces upon the impression-cylinder 1*" by means of stops, which in this example are bolts a, (one at each side of the carriage.) The carriage also supports the delivery or fly table J, upon which the printed sheets are delivered. The combination of the lnking apparatus of the supplementary imto its exact position for working.

The press is provided with a feeding-table,

K, and also with the endless tapes and pnl-- leys therefor, and other appliances which are necessary and usual for the purpose of carrying the sheet of paper through the press and delivering it. The press is also provided withy the gearing required to cause the printingsurfaces of the reciprocating carriage and impression-cylinders to nieve at the same speed as the paper upon the main cylinder, and with vibrating` pawls to turn the ductor-rollers of the several ink-fonts. As, however, the construction of all these is well understood by builders f printing-presses, and they form no part of my present invention, I have not deemed it necessary to represent them fully in the drawings or to describe them in detail.

The press thus described is well adapted to the printing of colored illustrations with letter-press, as curved type or blocks for printing the colored illustrations may be affixed to the impression-cylinde'rs F F F F, while the type for the letter-press may be placed upon thecarriage B. In this case the illustration may be printed in five colors, or, by increasing the number of impressioncylinders, a larger number of colors may be used.

Having thus described a press embodying my invention, I declare that I do not claim the invention of the individual members of which the press is composed, nor any particular number of impression-cylinders operating,` in connection with amain or printing cylinder for carrying the paper, nor any particular construction of the inking apparatus or other members of the press, my invention being limited to certain new combinations.

What, therefore, I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, in a printing-press, of

vthe following instr'umentalities, viz: the printing-cylinder, reciprocating carriage for flat printing-surfaces, inking apparatus therefor, impression-cylinder for curved printing-surfaces, inking apparatus therefor, and carriage for the inking` apparatus, all operating in the combination substantially as set forth.

2. The combination, in aV printing-press, of the following instrumentalities, Viz: the printing-cylinder, reciprocating carriage for ilat printing-surfaces, two im pression-cylinders for curved printing-surfaces arranged at opposite sides of the main printing-cylinder, two inking apparatus therefor, and two carriages for the inking apparatus, all operating in the combination substantiallyY as set forth.

In testimony whereof I have hereunto set my hand this 2d day of April, A. D. 1866.

` ANDREW DOUGHERTY.

Witnesses:

J. F. HARRISON, CHARLES J. ARMS. 

